MS Treeview from ASP issue after IE ActiveX update (kb912945)

[hsonny]

Hi there,

I have an ASP page using the treeview control from mscomctl.ocx that
was running just fine. We updated our browsers with this package (
details at http://support.microsoft.com/kb/912945/en-us) so I get
"Unhandled exception at 0x275888cf in IEXPLORE.EXE: 0xC0000005: Access
violation writing location 0x0000000b."
The other mscomctl.ocx's controls (ListView, MonthView, ImageList...)
are still working fine.
that's the code:
<OBJECT id=tvwPasta
classid="clsid:C74190B6-8589-11D1-B16A-00C0F0283628" width="100%"

height="235"
CODEBASE="http://<myserver>/mscomctl.cab#Version=6,1,97,82"
viewastext>
<PARAM NAME="_ExtentX" VALUE="7303">
<PARAM NAME="_ExtentY" VALUE="6138">
<PARAM NAME="_Version" VALUE="393217">
<PARAM NAME="HideSelection" VALUE="1">
<PARAM NAME="Indentation" VALUE="700">
<PARAM NAME="LabelEdit" VALUE="1">
<PARAM NAME="LineStyle" VALUE="1">
<PARAM NAME="PathSeparator" VALUE="">
<PARAM NAME="Sorted" VALUE="0">
<PARAM NAME="Style" VALUE="7">
<PARAM NAME="ImageList" VALUE="">
<PARAM NAME="BorderStyle" VALUE="0">
<PARAM NAME="Appearance" VALUE="1">
<PARAM NAME="MousePointer" VALUE="0">
<PARAM NAME="Enabled" VALUE="1">
<PARAM NAME="OLEDragMode" VALUE="0">
<PARAM NAME="OLEDropMode" VALUE="0">
</OBJECT>
Any idea? Thanks in advance for any help.
Sonny.

[Richard]

Sonny,

I had a similar problem and was advised to clear my cache, history etc and
restore IE to defaults. This fixed it after restarting. XP.

I think the actual problem is if you have Disable Script Debugging unchecked
in your Advanced settings. The download page
(http://support.microsoft.com/default...b;en-us;912945) has a
section which says

"External script technique does not work when the "Disable Script Debugging
(Internet Explorer)" check box is cleared"

but does not make clear that it will crash IE.

Regards,

Richard

[Martin STARZYK]

Hi Sonny,

I had the same problem. I try to clear cache, history and so on, but IE
crash continuosly. I try uninstall the KB912945 (Control Panels -->
Add/Remove Installed Programs (check the "Show Updates")) and problem solved.

But I don't know, how I fix this problem on the customes computers ... :o(.

Martin.

[JayLock]

Had the same issue when I installed KB912945. MSCOMCTL.OCX failed. Uninstalled and it worked. Here is the work around I put in place to solve the issue with KB912945 installed:

I but the Treeview in a <div id="div1" style="DISPLAY: none">, then set the div to block, div1.Style.Display="block", in the Window_OnLoad() event. This solves the IE Crash.

Also, I had to write a script to activate the controls on load. So I added this just before the </BODY> tag:

<!-- Fix for IE Patch 912945 -->
<script language="JavaScript" src="ActivateActiveXControls.js"></script>
</BODY>

And here are the contents of the script:

function fnRewriteElements(strTagName)
{
var elements = document.getElementsByTagName(strTagName);
for (var i = 0; i < elements.length; i++)
{
elements[i].outerHTML = elements[i].outerHTML;
}
}

function fnActivateControls()
{
fnRewriteElements('object');
fnRewriteElements('applet');
fnRewriteElements('embed');
}

// Some pages may require a pause before this script
// is executed. This is required if the controls take
// longer to load then the page. If that is the case
// use the following method to create a pause before
// the script is executed.
//window.setTimeout("fnActivateControls()", 50);

// Comment this out if you are using the setTimeout() method.
fnActivateControls();


Works like a champ now.

[JayLock]

Had the same issue when I installed KB912945. MSCOMCTL.OCX failed.
Uninstalled and it worked. Here is the work around I put in place to solve
the issue with KB912945 installed:

I but the Treeview in a <div id="div1" style="DISPLAY: none">, then set the
div to block, div1.Style.Display="block", in the Window_OnLoad() event. This
solves the IE Crash.

Also, I had to write a script to activate the controls on load. So I added
this just before the </BODY> tag:

<!-- Fix for IE Patch 912945 -->
<script language="JavaScript" src="ActivateActiveXControls.js"></script>
</BODY>

And here are the contents of the script:

function fnRewriteElements(strTagName)
{
var elements = document.getElementsByTagName(strTagName);
for (var i = 0; i < elements.length; i++)
{
elements[i].outerHTML = elements[i].outerHTML;
}
}

function fnActivateControls()
{
fnRewriteElements('object');
fnRewriteElements('applet');
fnRewriteElements('embed');
}

// Some pages may require a pause before this script
// is executed. This is required if the controls take
// longer to load then the page. If that is the case
// use the following method to create a pause before
// the script is executed.
//window.setTimeout("fnActivateControls()", 50);

// Comment this out if you are using the setTimeout() method.
fnActivateControls();
Works like a champ now.